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assembly

American  
[uh-sem-blee] / əˈsɛm bli /

noun

assemblies plural
  1. an assembling or coming together of a number of persons, usually for a particular purpose.

    The principal will speak to all the students at Friday's assembly.

    Synonyms:
    meeting, congress, gathering, assemblage
  2. a group of persons gathered together, usually for a particular purpose, whether religious, political, educational, or social.

    Synonyms:
    throng, meeting, congress, gathering, assemblage
  3. (often initial capital letter) a legislative body, especially the lower house of the legislature in certain states of the U.S..

    a bill before the assembly; the New York State Assembly.

    Synonyms:
    congress
  4. Military.

    1. a signal, as by drum or bugle, for troops to fall into ranks or otherwise assemble.

    2. the movement of forces, tanks, soldiers, etc., scattered by battle or battle drill, toward and into a small area.

  5. the putting together of complex machinery, as airplanes, from interchangeable parts of standard dimensions.

  6. Machinery. a group of machine parts, especially one forming a self-contained, independently mounted unit.


assembly 1 British  
/ əˈsɛmblɪ /

noun

  1. a number of people gathered together, esp for a formal meeting held at regular intervals

  2. the act of assembling or the state of being assembled

  3. the process of putting together a number of parts to make a machine or other product

  4. machinery a group of mating components before or after fitting together

  5. military

    1. a signal for personnel to assemble, as by drum, bugle, etc

    2. ( as modifier )

      an assembly area

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Assembly 2 British  
/ əˈsɛmblɪ /

noun

  1. the lower chamber in various American state legislatures See also House of Assembly legislative assembly National Assembly

  2. short for General Assembly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does assembly mean? An assembly is a gathering of people, usually for some specific reason, as in The preacher gave a sermon before the assembly. Assembly is used to refer to a group of people who have gathered together. Usually, the people have a reason to come together such as for religious, political, or social purposes. Assembly can also refer to the gathering or coming together of people, as in The principal organized an assembly of all of the parents. Assembly can also refer to a legislative body in which politicians gather to perform the political process. In this case, assembly is often capitalized when it’s a part of the name of the body, as in The bill was discussed by the California State Assembly. Lastly, assembly can refer to the act of putting something together or fitting parts together, as in Jorge helped his granddaughter with the assembly of the model airplane. Assembly comes from the verb assemble, which usually means to gather things or people together, as in The players assembled into a group huddle. Example: The police chief spoke to an assembly of citizens concerned about theft in the neighborhood.

Related Words

See convention.

Other Word Forms

Etymology

Origin of assembly

1275–1325; Middle English assemblee < Middle French, literally, (that which is) assembled, feminine past participle of assembler to assemble

Explanation

Use the noun assembly to refer group of people meeting up for a mutual purpose, such as a church service. Often used to describing a gathering of people, the word assembly can also refer to putting something together, such as a machine or a piece of furniture. No matter if the individual components are people or objects, assembly implies a bringing together. You may be familiar with the term "freedom of assembly," which is considered a basic human right. It means that people are free to peacefully gather together to protest the government, to worship, to hold a public meeting . . . or even to play poker. This allows people to exchange information and pursue mutual goals.

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Vocabulary lists containing assembly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Port of Long Beach is one of only two areas primed for the assembly work; the other is Humboldt Harbor near Eureka.

From Los Angeles Times • May 24, 2026

It has all the flavors of a dumpling filling, none of the assembly.

From Salon • May 22, 2026

But while the PP came out ahead with 53 seats, that is down from 58 in 2022 and below the 55 needed for an absolute majority in the assembly to govern alone.

From Barron's • May 18, 2026

The rally will then take place at Waterloo Place; speeches and music must conclude by 17:00 BST, and the assembly must end by 17:30.

From BBC • May 15, 2026

He took me to the opposite end of the huge shed where the final assembly of relay switches was done.

From "The Hiding Place" by Corrie ten Boom

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